java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 10:45:40,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 10:45:40,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 10:45:40,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 10:45:40,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 10:45:40,200 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 10:45:40,201 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 10:45:40,203 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 10:45:40,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 10:45:40,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 10:45:40,206 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 10:45:40,207 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 10:45:40,208 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 10:45:40,208 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 10:45:40,210 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 10:45:40,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 10:45:40,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 10:45:40,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 10:45:40,215 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 10:45:40,217 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 10:45:40,218 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 10:45:40,219 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 10:45:40,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 10:45:40,222 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 10:45:40,222 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 10:45:40,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 10:45:40,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 10:45:40,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 10:45:40,226 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 10:45:40,227 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 10:45:40,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 10:45:40,228 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 10:45:40,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 10:45:40,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 10:45:40,230 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 10:45:40,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 10:45:40,231 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-08-07 10:45:40,247 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 10:45:40,247 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 10:45:40,248 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 10:45:40,248 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 10:45:40,248 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 10:45:40,249 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 10:45:40,249 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 10:45:40,249 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 10:45:40,249 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 10:45:40,249 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 10:45:40,250 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 10:45:40,250 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 10:45:40,250 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 10:45:40,251 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 10:45:40,251 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 10:45:40,251 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 10:45:40,251 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 10:45:40,251 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 10:45:40,252 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 10:45:40,252 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 10:45:40,252 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 10:45:40,252 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 10:45:40,252 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 10:45:40,253 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 10:45:40,253 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 10:45:40,253 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 10:45:40,253 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 10:45:40,253 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 10:45:40,254 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 10:45:40,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 10:45:40,254 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 10:45:40,254 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 10:45:40,254 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 10:45:40,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 10:45:40,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 10:45:40,325 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 10:45:40,327 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 10:45:40,327 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 10:45:40,328 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-08-07 10:45:40,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3d913c56/562f1312d34a47fba1db0712071bccf9/FLAG5ace4f0db [2018-08-07 10:45:40,806 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 10:45:40,807 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp_true-unreach-call.i [2018-08-07 10:45:40,816 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3d913c56/562f1312d34a47fba1db0712071bccf9/FLAG5ace4f0db [2018-08-07 10:45:40,833 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3d913c56/562f1312d34a47fba1db0712071bccf9 [2018-08-07 10:45:40,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 10:45:40,850 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 10:45:40,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 10:45:40,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 10:45:40,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 10:45:40,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 10:45:40" (1/1) ... [2018-08-07 10:45:40,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7298ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:40, skipping insertion in model container [2018-08-07 10:45:40,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 10:45:40" (1/1) ... [2018-08-07 10:45:41,036 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 10:45:41,129 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 10:45:41,266 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 10:45:41,308 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 10:45:41,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41 WrapperNode [2018-08-07 10:45:41,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 10:45:41,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 10:45:41,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 10:45:41,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 10:45:41,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 10:45:41,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 10:45:41,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 10:45:41,486 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 10:45:41,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... [2018-08-07 10:45:41,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 10:45:41,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 10:45:41,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 10:45:41,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 10:45:41,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 10:45:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 10:45:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 10:45:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabs [2018-08-07 10:45:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabs [2018-08-07 10:45:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert [2018-08-07 10:45:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assert [2018-08-07 10:45:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmp [2018-08-07 10:45:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmp [2018-08-07 10:45:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 10:45:41,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 10:45:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 10:45:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 10:45:53,773 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 10:45:53,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 10:45:53 BoogieIcfgContainer [2018-08-07 10:45:53,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 10:45:53,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 10:45:53,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 10:45:53,778 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 10:45:53,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 10:45:40" (1/3) ... [2018-08-07 10:45:53,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5563ecdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 10:45:53, skipping insertion in model container [2018-08-07 10:45:53,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 10:45:41" (2/3) ... [2018-08-07 10:45:53,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5563ecdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 10:45:53, skipping insertion in model container [2018-08-07 10:45:53,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 10:45:53" (3/3) ... [2018-08-07 10:45:53,783 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-08-07 10:45:53,793 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 10:45:53,803 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 10:45:53,859 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 10:45:53,860 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 10:45:53,860 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 10:45:53,860 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 10:45:53,860 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 10:45:53,861 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 10:45:53,861 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 10:45:53,861 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 10:45:53,861 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 10:45:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-08-07 10:45:53,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-08-07 10:45:53,889 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 10:45:53,890 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 10:45:53,892 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 10:45:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1031654914, now seen corresponding path program 1 times [2018-08-07 10:45:53,900 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 10:45:53,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:53,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:45:53,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:53,963 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 10:45:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:45:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 10:45:55,524 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 10:45:55,524 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-08-07 10:45:55,524 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 10:45:55,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-08-07 10:45:55,546 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-08-07 10:45:55,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-07 10:45:55,552 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-08-07 10:45:55,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 10:45:55,602 INFO L93 Difference]: Finished difference Result 144 states and 200 transitions. [2018-08-07 10:45:55,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-08-07 10:45:55,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-08-07 10:45:55,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 10:45:55,619 INFO L225 Difference]: With dead ends: 144 [2018-08-07 10:45:55,619 INFO L226 Difference]: Without dead ends: 22 [2018-08-07 10:45:55,625 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-07 10:45:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-08-07 10:45:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-08-07 10:45:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-08-07 10:45:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-08-07 10:45:55,671 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-08-07 10:45:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 10:45:55,671 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-08-07 10:45:55,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-08-07 10:45:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-08-07 10:45:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-08-07 10:45:55,675 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 10:45:55,675 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 10:45:55,675 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 10:45:55,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1436118667, now seen corresponding path program 1 times [2018-08-07 10:45:55,677 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 10:45:55,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:55,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:45:55,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:55,679 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 10:45:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:45:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 10:45:57,043 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 10:45:57,043 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-08-07 10:45:57,043 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 10:45:57,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-07 10:45:57,045 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-07 10:45:57,045 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-08-07 10:45:57,046 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2018-08-07 10:45:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 10:45:57,404 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-08-07 10:45:57,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-07 10:45:57,405 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-08-07 10:45:57,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 10:45:57,408 INFO L225 Difference]: With dead ends: 53 [2018-08-07 10:45:57,408 INFO L226 Difference]: Without dead ends: 37 [2018-08-07 10:45:57,409 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-08-07 10:45:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-08-07 10:45:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-08-07 10:45:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-08-07 10:45:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-08-07 10:45:57,422 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 14 [2018-08-07 10:45:57,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 10:45:57,422 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-08-07 10:45:57,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-07 10:45:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-08-07 10:45:57,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-08-07 10:45:57,423 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 10:45:57,423 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 10:45:57,424 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 10:45:57,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2024299098, now seen corresponding path program 1 times [2018-08-07 10:45:57,424 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 10:45:57,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:57,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:45:57,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:57,426 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 10:45:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:45:58,604 WARN L170 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2018-08-07 10:45:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-08-07 10:45:58,826 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 10:45:58,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 10:45:58,826 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 10:45:58,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 10:45:58,827 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 10:45:58,827 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-08-07 10:45:58,828 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 6 states. [2018-08-07 10:45:59,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 10:45:59,030 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-08-07 10:45:59,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-07 10:45:59,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-08-07 10:45:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 10:45:59,031 INFO L225 Difference]: With dead ends: 41 [2018-08-07 10:45:59,032 INFO L226 Difference]: Without dead ends: 39 [2018-08-07 10:45:59,032 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-08-07 10:45:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-08-07 10:45:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-08-07 10:45:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-08-07 10:45:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-08-07 10:45:59,039 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-08-07 10:45:59,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 10:45:59,039 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-08-07 10:45:59,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 10:45:59,040 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-08-07 10:45:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-08-07 10:45:59,041 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 10:45:59,041 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 10:45:59,041 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 10:45:59,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1075076318, now seen corresponding path program 1 times [2018-08-07 10:45:59,042 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 10:45:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:59,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:45:59,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:45:59,043 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 10:45:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:46:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 10:46:00,568 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 10:46:00,568 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 10:46:00,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:46:00,578 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 10:46:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:46:00,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 10:46:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-08-07 10:46:01,100 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 10:46:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-08-07 10:46:01,545 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 10:46:01,545 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 10:46:01,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:46:01,563 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 10:46:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:46:02,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 10:46:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-08-07 10:46:02,701 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 10:46:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-08-07 10:46:02,798 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-08-07 10:46:02,798 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5, 5, 4] total 15 [2018-08-07 10:46:02,798 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 10:46:02,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-08-07 10:46:02,799 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-08-07 10:46:02,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-08-07 10:46:02,800 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2018-08-07 10:46:02,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 10:46:02,976 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2018-08-07 10:46:02,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-08-07 10:46:02,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-08-07 10:46:02,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 10:46:02,979 INFO L225 Difference]: With dead ends: 60 [2018-08-07 10:46:02,980 INFO L226 Difference]: Without dead ends: 44 [2018-08-07 10:46:02,980 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-08-07 10:46:02,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-08-07 10:46:02,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-08-07 10:46:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-08-07 10:46:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-08-07 10:46:02,987 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30 [2018-08-07 10:46:02,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 10:46:02,988 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-08-07 10:46:02,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-08-07 10:46:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-08-07 10:46:02,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-08-07 10:46:02,989 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 10:46:02,989 INFO L376 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 10:46:02,990 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 10:46:02,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1183553561, now seen corresponding path program 2 times [2018-08-07 10:46:02,990 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 10:46:02,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:46:02,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 10:46:02,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 10:46:02,991 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 10:46:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 10:46:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-08-07 10:46:04,521 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 10:46:04,521 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 10:46:04,539 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-08-07 10:46:04,539 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-08-07 10:46:04,595 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-08-07 10:46:04,596 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-08-07 10:46:04,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 10:46:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-08-07 10:46:04,998 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 10:46:05,155 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-08-07 10:46:05,175 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 10:46:05,175 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 10:46:05,192 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-08-07 10:46:05,193 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-08-07 10:46:05,789 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-08-07 10:46:05,790 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-08-07 10:46:06,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 10:46:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-08-07 10:46:06,415 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 10:46:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-08-07 10:46:06,515 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 10:46:06,515 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6, 6, 6] total 13 [2018-08-07 10:46:06,515 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 10:46:06,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 10:46:06,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 10:46:06,516 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-08-07 10:46:06,516 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 9 states. [2018-08-07 10:46:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 10:46:06,858 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-08-07 10:46:06,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-07 10:46:06,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-08-07 10:46:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 10:46:06,859 INFO L225 Difference]: With dead ends: 62 [2018-08-07 10:46:06,859 INFO L226 Difference]: Without dead ends: 0 [2018-08-07 10:46:06,860 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-08-07 10:46:06,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-08-07 10:46:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-08-07 10:46:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-08-07 10:46:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-08-07 10:46:06,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2018-08-07 10:46:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 10:46:06,861 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-08-07 10:46:06,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-07 10:46:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-08-07 10:46:06,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-08-07 10:46:06,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-08-07 10:46:07,296 WARN L170 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 14 [2018-08-07 10:46:07,387 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-08-07 10:46:07,387 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L425 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-08-07 10:46:07,388 INFO L422 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-08-07 10:46:07,389 INFO L422 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-08-07 10:46:07,389 INFO L425 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-08-07 10:46:07,389 INFO L422 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-08-07 10:46:07,389 INFO L422 ceAbstractionStarter]: For program point L44-1(lines 44 62) no Hoare annotation was computed. [2018-08-07 10:46:07,389 INFO L425 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-08-07 10:46:07,390 INFO L422 ceAbstractionStarter]: For program point L44-3(lines 44 62) no Hoare annotation was computed. [2018-08-07 10:46:07,390 INFO L425 ceAbstractionStarter]: At program point L44-4(lines 44 62) the Hoare annotation is: true [2018-08-07 10:46:07,390 INFO L422 ceAbstractionStarter]: For program point L44-5(lines 44 62) no Hoare annotation was computed. [2018-08-07 10:46:07,390 INFO L425 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-08-07 10:46:07,390 INFO L422 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-08-07 10:46:07,390 INFO L422 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-08-07 10:46:07,390 INFO L422 ceAbstractionStarter]: For program point L55-3(lines 55 61) no Hoare annotation was computed. [2018-08-07 10:46:07,391 INFO L425 ceAbstractionStarter]: At program point L55-4(lines 55 61) the Hoare annotation is: true [2018-08-07 10:46:07,391 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-08-07 10:46:07,391 INFO L422 ceAbstractionStarter]: For program point L47-1(lines 47 54) no Hoare annotation was computed. [2018-08-07 10:46:07,391 INFO L422 ceAbstractionStarter]: For program point L47-3(lines 47 54) no Hoare annotation was computed. [2018-08-07 10:46:07,391 INFO L425 ceAbstractionStarter]: At program point L47-4(lines 47 54) the Hoare annotation is: true [2018-08-07 10:46:07,391 INFO L422 ceAbstractionStarter]: For program point L47-5(lines 47 54) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L422 ceAbstractionStarter]: For program point L72-1(lines 72 78) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L422 ceAbstractionStarter]: For program point L72-3(lines 72 78) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L425 ceAbstractionStarter]: At program point L72-4(lines 72 78) the Hoare annotation is: true [2018-08-07 10:46:07,392 INFO L422 ceAbstractionStarter]: For program point L72-5(lines 72 78) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L422 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L422 ceAbstractionStarter]: For program point L64-3(lines 64 70) no Hoare annotation was computed. [2018-08-07 10:46:07,392 INFO L425 ceAbstractionStarter]: At program point L64-4(lines 64 70) the Hoare annotation is: true [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point L64-5(lines 64 70) no Hoare annotation was computed. [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_lu_cmp_true_unreach_call_i__ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point L58-1(lines 58 59) no Hoare annotation was computed. [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point L58-3(lines 58 59) no Hoare annotation was computed. [2018-08-07 10:46:07,393 INFO L425 ceAbstractionStarter]: At program point L58-4(lines 58 59) the Hoare annotation is: true [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point L58-5(lines 58 59) no Hoare annotation was computed. [2018-08-07 10:46:07,393 INFO L422 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L75-1(lines 75 76) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L75-3(lines 75 76) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L425 ceAbstractionStarter]: At program point L75-4(lines 75 76) the Hoare annotation is: true [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L75-5(lines 75 76) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L67-1(lines 67 68) no Hoare annotation was computed. [2018-08-07 10:46:07,394 INFO L422 ceAbstractionStarter]: For program point L67-3(lines 67 68) no Hoare annotation was computed. [2018-08-07 10:46:07,395 INFO L425 ceAbstractionStarter]: At program point L67-4(lines 67 68) the Hoare annotation is: true [2018-08-07 10:46:07,395 INFO L422 ceAbstractionStarter]: For program point L67-5(lines 67 68) no Hoare annotation was computed. [2018-08-07 10:46:07,395 INFO L422 ceAbstractionStarter]: For program point L51-1(lines 51 52) no Hoare annotation was computed. [2018-08-07 10:46:07,395 INFO L422 ceAbstractionStarter]: For program point L51-3(lines 51 52) no Hoare annotation was computed. [2018-08-07 10:46:07,395 INFO L425 ceAbstractionStarter]: At program point L51-4(lines 51 52) the Hoare annotation is: true [2018-08-07 10:46:07,395 INFO L422 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-08-07 10:46:07,395 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-08-07 10:46:07,396 INFO L425 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-08-07 10:46:07,396 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-08-07 10:46:07,396 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-08-07 10:46:07,396 INFO L422 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-08-07 10:46:07,396 INFO L422 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-08-07 10:46:07,396 INFO L422 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-08-07 10:46:07,397 INFO L422 ceAbstractionStarter]: For program point L23-1(lines 23 34) no Hoare annotation was computed. [2018-08-07 10:46:07,397 INFO L422 ceAbstractionStarter]: For program point L23-3(lines 23 34) no Hoare annotation was computed. [2018-08-07 10:46:07,397 INFO L418 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-08-07 10:46:07,397 INFO L425 ceAbstractionStarter]: At program point L23-5(lines 23 34) the Hoare annotation is: true [2018-08-07 10:46:07,397 INFO L422 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-08-07 10:46:07,397 INFO L422 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-08-07 10:46:07,398 INFO L425 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-08-07 10:46:07,398 INFO L422 ceAbstractionStarter]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2018-08-07 10:46:07,398 INFO L422 ceAbstractionStarter]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2018-08-07 10:46:07,398 INFO L418 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-08-07 10:46:07,399 INFO L418 ceAbstractionStarter]: At program point L26-5(lines 26 31) the Hoare annotation is: (or (and (<= 1 main_~i~0) (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) (and (= main_~n~0 5) (= main_~i~0 0))) [2018-08-07 10:46:07,399 INFO L422 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-08-07 10:46:07,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 10:46:07 BoogieIcfgContainer [2018-08-07 10:46:07,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-07 10:46:07,416 INFO L168 Benchmark]: Toolchain (without parser) took 26567.94 ms. Allocated memory was 1.5 GB in the beginning and 3.0 GB in the end (delta: 1.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -293.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-08-07 10:46:07,417 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 10:46:07,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-08-07 10:46:07,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 10:46:07,419 INFO L168 Benchmark]: Boogie Preprocessor took 182.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-07 10:46:07,420 INFO L168 Benchmark]: RCFGBuilder took 12105.13 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -486.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-08-07 10:46:07,421 INFO L168 Benchmark]: TraceAbstraction took 13640.24 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 192.9 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 140.1 MB). Peak memory consumption was 333.1 MB. Max. memory is 7.1 GB. [2018-08-07 10:46:07,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 561.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12105.13 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -486.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 13640.24 ms. Allocated memory was 2.8 GB in the beginning and 3.0 GB in the end (delta: 192.9 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 140.1 MB). Peak memory consumption was 333.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((1 <= i && n <= 5) && i <= 5) && 5 <= n) || (n == 5 && i == 0) - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((1 <= i && n <= 5) && 5 <= n) || (n == 5 && i == 0) - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. SAFE Result, 13.5s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 69 SDslu, 190 SDs, 0 SdLazy, 180 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 251 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 38 PreInvPairs, 58 NumberOfFragments, 78 HoareAnnotationTreeSize, 38 FomulaSimplifications, 56 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 241 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 358 ConstructedInterpolants, 0 QuantifiedInterpolants, 25770 SizeOfPredicates, 12 NumberOfNonLiveVariables, 242 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 90/157 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_10-46-07-453.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lu.cmp_true-unreach-call.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-07_10-46-07-453.csv Received shutdown request...